Sink strainer



FIG. 1 is a front perspective view of a sink strainer with the handle shown in an extended position, showing my new design;

FIG. 2 is a rear perspective view of the sink strainer with the handle shown in an extended position;

FIG. 3 is a front elevation view of thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a front elevation view of the sink strainer with the handle shown in a non-extended position;

FIG. 10 is a front view of the sink strainer shown in a first position of use;

FIG. 11 is a front view of the sink strainer shown in a second position of use; and,

FIG. 12 is an enlarged detail view of the selected portion 12 shown in FIG. 1 .

The long dash-short dash broken lines shown in FIG. 1 and FIG. 12 indicate cutoff boundaries for enlarged detail portion views and form no part of the claim. 

CLAIM The ornamental design for a sink strainer, as shown and described. 